How can I calculate the repulsive force between two magnets?

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letueros
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How can i get the force of repulsion between 2 magnets? Which are located in a given location. and they have a determinated magnetic field in tesla. please give me the equation and the names of the variables. (and the name of the equation)
Thanks
 

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The equation depends on the positon of the magnets.
There are different equations for when they are almost touching and when they are far apart. At moderate distances, it gets more complicated.
 
Yeah i know, they are supposed to be very close but there is not friction between them, like 2 cm of distance.
 

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